Hydrothermally forming a flow barrier in a leached subterranean

Details Hydrothermally forming a flow barrier in a leached subterranean Hydrothermally forming a flow barrier in a leached subterranean

1976-08-12

1977-05-31

Novosad, Stephen J.

Wells

Processes

Distinct, separate injection and producing wells

166261, E21B 4324

Patent

active

040263606

ABSTRACT:
Shale oil can be produced from a naturally fractured and leached subterranean oil shale formation by reacting the formation components with a hot aqueous alkaline liquid to form and distribute clay-like materials which can be water-swollen to form a flow barrier along or around a selected portion of the oil shale formation. Such flow barriers can guide or confine fluids that are injected and produced to recover shale oil.

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patent: 3410345 (1968-11-01), Fradkin
patent: 3563312 (1971-02-01), Zwicky
patent: 3727686 (1973-04-01), Prats et al.
patent: 3739851 (1973-06-01), Beard
patent: 3741306 (1973-06-01), Papadopoulos et al.
patent: 3759328 (1973-09-01), Veber et al.
patent: 3804172 (1974-04-01), Closmann et al.

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